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一．Kotlin串口通訊實(shí)現(xiàn)
1.1導(dǎo)入基礎(chǔ)庫(kù)
1.為了方便大家。我把所有關(guān)于串口的資源打包成aar 文件，大家直接使用即可。
谷歌android串口開(kāi)發(fā) aar文件，地址如下所示：
使用過(guò)程
aar文件導(dǎo)入lib文件夾。
gradle文件
repositories {
??????? flatDir {
??????????? dirs 'libs'
??????? }
??? }dependencies {
??? implementation(name: 'serialport-1.0.1', ext: 'aar')
}1.2?效果展示
1.3布局界面
12.1?代碼
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
??? xmlns:app="http://schemas.android.com/apk/res-auto"
??? android:layout_width="match_parent"
??? android:layout_height="match_parent"
??? android:orientation="vertical">
??? <androidx.appcompat.widget.Toolbar
??????? android:theme="@style/ThemeOverlay.AppCompat.Dark.ActionBar"
??????? android:background="@color/shape3"
??????? android:id="@+id/toolbar"
??????? android:layout_width="match_parent"
??????? android:layout_height="?actionBarSize"
??????? app:title="History Data"
??????? app:titleTextColor="@android:color/white"
??????? >
??? </androidx.appcompat.widget.Toolbar>
??? <FrameLayout
??????? android:id="@+id/main_layout"
??????? android:layout_width="match_parent"
??????? android:layout_height="match_parent"
??????? >
??????? <LinearLayout
??????????? android:layout_width="match_parent"
??????????? android:layout_height="match_parent"
??????????? android:orientation="vertical">
??????????? <androidx.recyclerview.widget.RecyclerView
??????????????? android:id="@+id/recycler_view"
??????????????? style="@style/RecyclerViewStyle"
??????????????? android:layout_weight="1"/>
??????????? <RadioGroup
??????????????? android:id="@+id/radioGroup"
??????????????? android:layout_width="wrap_content"
??????????????? android:layout_height="wrap_content"
??????????????? android:layout_marginBottom="8dp"
??????????????? android:layout_marginStart="8dp"
??????????????? android:orientation="horizontal"
??????????????? app:layout_constraintBottom_toTopOf="@+id/sp_bote"
??????????????? app:layout_constraintStart_toStartOf="parent">
??????????????? <RadioButton
??????????????????? android:id="@+id/radioButton1"
??????????????????? android:layout_width="wrap_content"
??????????????????? android:layout_height="wrap_content"
??????????????????? android:layout_weight="1"
??????????????????? android:text="發(fā)送Text" />
??????????????? <RadioButton
??????????????????? android:id="@+id/radioButton2"
??????????????????? android:layout_width="wrap_content"
??????????????????? android:layout_height="wrap_content"
??????????????????? android:layout_marginLeft="10dp"
??????????????????? android:layout_weight="1"
??????????????????? android:checked="true"
??????????????????? android:text="發(fā)送Hex" />
??????????? </RadioGroup>
??????????? <androidx.cardview.widget.CardView
??????????????? style="@style/CardViews"
??????????????? app:cardCornerRadius="22dp">
?? ?????????????<LinearLayout
??????????????????? android:layout_width="match_parent"
??????????????????? android:layout_height="wrap_content"
??????????????????? android:gravity="center_vertical"
??????????????????? android:layout_marginLeft="20dp">
??????? ????????????<TextView
??????????????????????? android:layout_width="66dp"
??????????????????????? android:layout_height="wrap_content"
??????????????????????? android:layout_marginTop="12dp"
??????????????????????? android:layout_marginBottom="12dp"
????? ??????????????????android:alpha="0.4"
??????????????????????? android:text="串口號(hào)"
??????????????????????? android:gravity="center"
??????????????????????? android:textColor="@color/black"
??????????????????????? android:textSize="14sp" />
??????????????????? <EditText
??????????????????????? android:layout_weight="1"
??????????????????????? android:id="@+id/EditText1"
??????????????????????? android:layout_width="match_parent"
??????????????????????? android:layout_height="match_parent"
?? ?????????????????????android:background="@null"
??????????????????????? android:hint="無(wú)"
??????????????????????? android:inputType="number"
??????????????????????? android:textColor="@color/shape1"
??????????????????????? android:textSize="14sp"
????????? ??????????????android:layout_marginLeft="14dp" />
??????????????????? <Spinner
??????????????????????? android:id="@+id/sp_serial"
??????????????????????? android:layout_width="100dp"
??????????????????????? android:layout_height="wrap_content"
????????? ??????????????android:layout_marginStart="8dp"
??????????????????????? android:layout_marginEnd="15dp">
??????????????????? </Spinner>
??????????????? </LinearLayout>
??????????? </androidx.cardview.widget.CardView>
??????????? <androidx.cardview.widget.CardView
??????????????? style="@style/CardViews"
??????????????? app:cardCornerRadius="22dp">
??????????????? <LinearLayout
??????????????????? android:layout_width="match_parent"
??????????????????? android:layout_height="wrap_content"
??????????????????? android:gravity="center_vertical"
??????????????????? android:layout_marginLeft="20dp">
??????????????????? <TextView
??????????????????????? android:layout_width="66dp"
??????????????????????? android:layout_height="wrap_content"
??? ????????????????????android:layout_marginTop="12dp"
??????????????????????? android:layout_marginBottom="12dp"
??????????????????????? android:alpha="0.4"
??????????????????????? android:gravity="center"
??????????????????????? android:text="波特率"
???????? ???????????????android:textColor="@color/black"
??????????????????????? android:textSize="14sp" />
??????????????????? <EditText
??????????????????????? android:id="@+id/EditText2"
??????????????????????? android:layout_weight="1"
??????????????????????? android:layout_width="match_parent"
??????????????????????? android:layout_height="match_parent"
??????????????????????? android:background="@null"
??????????????????????? android:hint="無(wú)"
??????????????????????? android:inputType="number"
??????????????? ????????android:textColor="@color/shape1"
??????????????????????? android:textSize="14sp"
??????????????????????? android:layout_marginLeft="14dp" />
??????????????????? <Spinner
??????????????????????? android:id="@+id/sp_bote"
??????????????????????? android:layout_width="100dp"
??????????????????????? android:layout_height="wrap_content"
??????????????????????? android:layout_marginStart="8dp"
??????????????????????? android:layout_marginEnd="15dp">
??????????????????? </Spinner>
??????????????? </LinearLayout>
??????????? </androidx.cardview.widget.CardView>
??????????? <androidx.cardview.widget.CardView
??????????????? style="@style/CardViews"
??????????????? app:cardCornerRadius="22dp">
??????????????? <LinearLayout
??????? ????????????android:layout_width="match_parent"
??????????????????? android:layout_height="wrap_content"
??????????????????? android:gravity="center_vertical"
??????????????????? android:layout_marginLeft="20dp">
??????????????????? <TextView
???????????? ???????????android:layout_width="66dp"
??????????????????????? android:layout_height="wrap_content"
??????????????????????? android:layout_marginTop="12dp"
??????????????????????? android:layout_marginBottom="12dp"
??????????????????????? android:alpha="0.4"
??????????????????????? android:text="發(fā)送消息"
??????????????????????? android:gravity="center"
??????????????????????? android:textColor="@color/black"
??????????????????????? android:textSize="14sp" />
??????????????????? <EditText
???????????????????? ???android:id="@+id/SendText"
??????????????????????? android:layout_width="match_parent"
??????????????????????? android:layout_height="match_parent"
??????????????????????? android:layout_marginLeft="14dp"
??????????????????????? android:layout_weight="1"
??????????????????????? android:background="@null"
??????????????????????? android:hint="請(qǐng)輸入"
??????????????????????? android:textColor="@color/teal_200"
??????????????????????? android:textSize="14sp" />
??????????????? </LinearLayout>
??????????? </androidx.cardview.widget.CardView>
??????????? <LinearLayout
??????????????? android:layout_width="match_parent"
??????????????? android:layout_height="wrap_content"
??????????????? android:gravity="center"
??????????????? android:layout_marginTop="20dp"
??????????????? android:layout_marginBottom="25dp"
??????????????? android:orientation="horizontal">
??????????????? <Button
??????????????????? android:id="@+id/open"
??????????????????? android:layout_width="wrap_content"
??????????????????? android:layout_height="44dp"
??????????????????? android:background="@drawable/shape_bt"
??????????????????? android:gravity="center"
??????????????????? android:text="打開(kāi)串口"
??????????????????? android:textColor="@android:color/white"
??????????????????? android:textSize="@dimen/sp_14" />
??????????????? <View
??????????????????? android:layout_width="100dp"
??????????????????? android:layout_height="match_parent"
??????????????????? >
??????????????? </View>
??????????????? <Button
??????????????????? android:id="@+id/send"
??????????????????? android:layout_width="wrap_content"
??????????????????? android:layout_height="44dp"
??????????????????? android:background="@drawable/shape_bt"
??????????????????? android:gravity="center"
??????????????????? android:text="發(fā)送"
??????????????????? android:textColor="@android:color/white"
??????????????????? android:textSize="@dimen/sp_14" />
??????????? </LinearLayout>
??????? </LinearLayout>
??? </FrameLayout>
</LinearLayout>1.4 Activity實(shí)現(xiàn)代碼
13.1?實(shí)列化
private var serialPortFinder: SerialPortFinder? = null
? ??? private var serialHelper: SerialHelper? = null
?????? //局部變量
private val list = ArrayList<Map<String, Any>>()
??? ???var map: Map<String, Any>? = null1.3.2?適配波特率以及獲取本機(jī)串口號(hào)，進(jìn)行串口監(jiān)聽(tīng)
（1）適配器的編寫(xiě)
?????? 名字：SpAdapter
public class SpAdapter extends BaseAdapter {
??? String[] datas;
??? Context mContext;
??? public SpAdapter(Context context) {
??????? this.mContext = context;
??? }
??? public void setDatas(String[] datas) {
??????? this.datas = datas;
??????? notifyDataSetChanged();
??? }
??? @Override
??? public int getCount() {
??????? return datas == null ? 0 : datas.length;
??? }
??? @Override
??? public Object getItem(int position) {
??????? return datas == null ? null : datas[position];
??? }
??? @Override
??? public long getItemId(int position) {
??????? return position;
??? }
??? @Override
??? public View getView(int position, View convertView, ViewGroup parent) {
??????? ViewHodler hodler = null;
??????? if (convertView == null) {
??????????? hodler = new ViewHodler();
??????????? convertView = LayoutInflater.from(mContext).inflate(R.layout.item_layout, null);
??????????? hodler.mTextView = (TextView) convertView;
??????????? convertView.setTag(hodler);
??????? } else {
??????????? hodler = (ViewHodler) convertView.getTag();
??????? }
??????? hodler.mTextView.setText(datas[position]);
??? ????return convertView;
??? }
??? private static class ViewHodler {
??????? TextView mTextView;
??? }
}
（2）適配代碼
serialPortFinder = SerialPortFinder()
??????? //獲取串口地址
??????? val ports = serialPortFinder!!.allDevicesPath
??????? //設(shè)置波特率地址
??????? val botes = arrayOf(
??????????? "0",
??????????? "50",
??????????? "75",
??????????? "110",
??????????? "134",
??????????? "150",
??????????? "200",
??????????? "300",
??????????? "600",
??????????? "1200",
??????????? "1800",
??????????? "2400",
??????????? "4800",
??????????? "9600",
??????????? "19200",
??????????? "38400",
??????????? "57600",
??????????? "115200",
??????????? "230400",
??????????? "460800",
??????????? "500000",
??????????? "576000",
??????????? "921600",
??????????? "1000000",
??????????? "1152000",
??????????? "1500000",
??????????? "2000000",
?????????? ?"2500000",
??????????? "3000000",
??????????? "3500000",
??????????? "4000000"
??????? )
??????? val spAdapter = SpAdapter(this)
??????? /*
???????? * TODO 適配下拉列表（串口地址）
??????? * */
??????? spAdapter.setDatas(ports)
??????? binding.spSerial.adapter = spAdapter
??????? binding.spSerial.onItemSelectedListener = object : OnItemSelectedListener {
??????????? override fun onItemSelected(
??????????????? parent: AdapterView<*>?,
??????????????? view: View,
??????????????? position: Int,
??????????????? id: Long
??????????? ) {
??????????????? serialHelper?.close()
??????????????? serialHelper?.port = ports[position]
??????????????? binding.EditText1.setText(ports[position])
??????????????? binding.open.text = "關(guān)閉串口"
???? ???????}
??????????? override fun onNothingSelected(parent: AdapterView<*>?) {}
??????? }
??????? /*
???????? * TODO 適配下拉列表（波特率地址）
??????? * */
??????? val spAdapter2 = SpAdapter(this)
??????? spAdapter2.setDatas(botes)
??????? binding.spBote.adapter = spAdapter2
??????? binding.spBote.onItemSelectedListener = object : OnItemSelectedListener {
??????????? override fun onItemSelected(
??????????????? parent: AdapterView<*>?,
??????????????? view: View,
??????????????? position: Int,
??????????????? id: Long
??????????? ) {
??????????????? serialHelper?.close()
??????????????? serialHelper?.setBaudRate(botes[position])
??????????????? binding.EditText2.setText(botes[position])
??????????????? binding.open.text = "關(guān)閉串口"
??? ????????}
??????????? override fun onNothingSelected(parent: AdapterView<*>?) {}
??????? }（3）開(kāi)啟串口監(jiān)視
?? serialHelper = object : SerialHelper() {
??????????? override fun onDataReceived(comBean: ComBean) {
??????????????? runOnUiThread {
//??????????????????? Toast.makeText(
//??????????????????????? baseContext,
//??????????????????????? FuncUtil.ByteArrToHex(comBean.bRec),
//????????????????????? ??Toast.LENGTH_SHORT
//??????????????????? ).show()
??????????????????? /*
??????????????????? * TODO 將獲取的數(shù)據(jù)進(jìn)行列表適配
??????????????????? * */
??????????????????? map = HashMap()
??????????????????? (map as HashMap<String, Any>)["Value"] =comBean.sRecTime + ":?? " +
??????????????????????????? ByteUtil.hexStringToString(ByteUtil.bytesToHexString(comBean.bRec))
??????????????????? list.add(map as HashMap<String, Any>)
??????????????????? Handler(Looper.getMainLooper()).postDelayed({
??????????????????????? /**
???????????????????????? * 列表數(shù)據(jù)的溢處理已經(jīng)適配
???????????????????????? * */
??????????????????????? if (list.size>12){
??????????????????????????? map = list[0]
??????????????????????????? list.remove(map)
??????????????????????? }
??????????????????????? initAdapter()
??????????????????? }, 300)
??????????????? }
??????????? }
??????? }???二．MPAndroidChart圖表使用
2.1導(dǎo)入基礎(chǔ)庫(kù)
2.1.1.引入開(kāi)源庫(kù)
在項(xiàng)目根目錄的build.gradle文件中加入如下代碼
allprojects {
??? repositories {
??????? maven { url "https://jitpack.io" }
??? }2.1.2在app根目錄的buil.gradle文件中加入依賴(lài)
根據(jù)自己的需求添加對(duì)應(yīng)的庫(kù)文件
主要運(yùn)用到的為下列兩個(gè)開(kāi)源庫(kù)
/*安卓項(xiàng)目實(shí)戰(zhàn)之：開(kāi)源框架BaseRecyclerViewAdapterHelper的使用*/
api 'com.github.CymChad:BaseRecyclerViewAdapterHelper:3.0.4'
//MPAndroidChart畫(huà)圖
??? implementation 'com.github.PhilJay:MPAndroidChart:v3.0.3'
dependencies {
//api表示對(duì)所有的module可見(jiàn)，如果沒(méi)有在其他地方使用到版本號(hào)，則不用進(jìn)行版本號(hào)的統(tǒng)一控制
/*??? *//*一個(gè)非常好用的開(kāi)源庫(kù)，調(diào)試Android數(shù)據(jù)庫(kù)有救了*//*
??? debugImplementation 'com.glance.guolindev:glance:1.0.0-alpha01'*/
??? //使用開(kāi)源的org.greenrobot.EventBus可以更好地維護(hù)事件處理
??? api 'org.greenrobot:eventbus:3.0.0'
??? //MultiDex，解決方法數(shù)超過(guò)65535限制
??? api 'androidx.multidex:multidex:2.0.1'
??? //leakcanary檢測(cè)內(nèi)存泄漏
??? debugImplementation 'com.squareup.leakcanary:leakcanary-android:2.4'
??? //Kotlin
??? implementation "org.jetbrains.kotlin:kotlin-stdlib-jdk7:$kotlin_version"
??? //RxJava
??? api 'io.reactivex.rxjava2:rxandroid:2.1.0'
??? api 'io.reactivex.rxjava2:rxjava:2.2.4'
??? //側(cè)滑返回框架
??? api 'com.billy.android:smart-swipe:1.1.2'
??? /*android4.4以上沉浸式狀態(tài)欄和導(dǎo)航欄實(shí)現(xiàn)以及Bar的其他管理*/
??? api 'com.gyf.immersionbar:immersionbar:3.0.0'
??? /*安卓項(xiàng)目實(shí)戰(zhàn)之：開(kāi)源框架BaseRecyclerViewAdapterHelper的使用*/
??? api 'com.github.CymChad:BaseRecyclerViewAdapterHelper:3.0.4'
??? //下拉刷新框架
??? api 'com.scwang.smartrefresh:SmartRefreshLayout:1.1.2'
??? //特殊Header
??? api 'com.scwang.smartrefresh:SmartRefreshHeader:1.1.2'
??? //MPAndroidChart畫(huà)圖
??? implementation 'com.github.PhilJay:MPAndroidChart:v3.0.3'
??? //底部選擇器
??? api 'com.contrarywind:Android-PickerView:4.1.8'
}2.2 LineChart曲線(xiàn)圖
2.2.1布局代碼
<com.github.mikephil.charting.charts.LineChart
??????????? android:id="@+id/dynamic_chart1"
??????????? android:layout_width="match_parent"
??????????? android:layout_height="380dp"/>2.2.2 Activity實(shí)現(xiàn)代碼
1.寫(xiě)一個(gè)工具類(lèi)以便我們使用
文件名：DynamicLineChartManager
public class DynamicLineChartManager {
??? private LineChart lineChart;
??? private YAxis leftAxis;
??? private YAxis rightAxis;
??? private XAxis xAxis;
??? private LineData lineData;
??? private LineDataSet lineDataSet;
??? private List<ILineDataSet> lineDataSets = new ArrayList<>();
??? private SimpleDateFormat df = new SimpleDateFormat("HH:mm:ss");//設(shè)置日期格式
??? private List<String> timeList = new ArrayList<>(); //存儲(chǔ)x軸的時(shí)間
??? //一條曲線(xiàn)
??? public DynamicLineChartManager(LineChart mLineChart, String name, int color) {
??????? this.lineChart = mLineChart;
??????? leftAxis = lineChart.getAxisLeft();
??????? rightAxis = lineChart.getAxisRight();
??????? xAxis = lineChart.getXAxis();
??????? initLineChart();
??????? initLineDataSet(name, color);
??? }
??? //警告曲線(xiàn)
??? public DynamicLineChartManager(LineChart mLineChart, String name, int color,float High, String warn,int warn_color) {
??????? this.lineChart = mLineChart;
??????? leftAxis = lineChart.getAxisLeft();
??????? rightAxis = lineChart.getAxisRight();
?????? ?xAxis = lineChart.getXAxis();
??????? initLineChart();
??????? initLineDataWarn(name, color,High,warn,warn_color);
??? }
??? //多條曲線(xiàn)
??? public DynamicLineChartManager(LineChart mLineChart, List<String> names, List<Integer> colors) {
??????? this.lineChart = mLineChart;
??????? leftAxis = lineChart.getAxisLeft();
??????? rightAxis = lineChart.getAxisRight();
??????? xAxis = lineChart.getXAxis();
??????? initLineChart();
??????? initLineDataSet(names, colors);
??? }
??? /**
???? * 初始化LineChar
???? */
??? private void initLineChart() {
??????? lineChart.setDrawGridBackground(false);
??????? //顯示邊界
??????? lineChart.setDrawBorders(true);
??????? //折線(xiàn)圖例 標(biāo)簽 設(shè)置
??????? Legend legend = lineChart.getLegend();
??????? legend.setForm(Legend.LegendForm.LINE);
??????? legend.setTextSize(11f);
??????? //顯示位置
??????? legend.setVerticalAlignment(Legend.LegendVerticalAlignment.BOTTOM);
??????? legend.setHorizontalAlignment(Legend.LegendHorizontalAlignment.LEFT);
????? ??legend.setOrientation(Legend.LegendOrientation.HORIZONTAL);
??????? legend.setDrawInside(false);
??????? //X軸設(shè)置顯示位置在底部
??????? xAxis.setPosition(XAxis.XAxisPosition.BOTTOM);
??????? xAxis.setGranularity(1f);
??????? xAxis.setLabelCount(10);
??????? xAxis.setValueFormatter(new IAxisValueFormatter() {
??????????? @Override
??????????? public String getFormattedValue(float value, AxisBase axis) {
??????????????? return timeList.get((int) value % timeList.size());
??????????? }
??????? });
??????? //保證Y軸從0開(kāi)始，不然會(huì)上移一點(diǎn)
??????? leftAxis.setAxisMinimum(0f);
??????? rightAxis.setAxisMinimum(0f);
??? }
??? /**
???? * 初始警告線(xiàn)化折線(xiàn)(一條線(xiàn))
???? *
???? * @param name
???? * @param color
???? */
??? private void initLineDataWarn(String name, int color,float High, String warn,int warn_color) {
??????? lineDataSet = new LineDataSet(null, name);
??????? lineDataSet.setLineWidth(1.5f);
??????? lineDataSet.setCircleRadius(1.5f);
??????? lineDataSet.setColor(color);
??????? lineDataSet.setCircleColor(color);
??????? lineDataSet.setHighLightColor(color);
??????? //設(shè)置曲線(xiàn)填充
??????? lineDataSet.setDrawFilled(true);
??????? lineDataSet.setAxisDependency(YAxis.AxisDependency.LEFT);
??????? lineDataSet.setValueTextSize(10f);
??????? lineDataSet.setMode(LineDataSet.Mode.CUBIC_BEZIER);
??????? //添加一個(gè)空的 LineData
??????? lineData = new LineData();
??????? lineChart.setData(lineData);
??????? lineChart.invalidate();
??????? setHightLimitLine(High,warn, warn_color);
??? }
??? /**
???? * 初始化折線(xiàn)(一條線(xiàn))
???? *
???? * @param name
???? * @param color
???? */
??? private void initLineDataSet(String name, int color) {
??????? lineDataSet = new LineDataSet(null, name);
??????? lineDataSet.setLineWidth(1.5f);
??????? lineDataSet.setCircleRadius(1.5f);
??????? lineDataSet.setColor(color);
??????? lineDataSet.setCircleColor(color);
??????? lineDataSet.setHighLightColor(color);
??????? //設(shè)置曲線(xiàn)填充
??????? lineDataSet.setDrawFilled(true);
??????? lineDataSet.setAxisDependency(YAxis.AxisDependency.LEFT);
??????? lineDataSet.setValueTextSize(10f);
??????? lineDataSet.setMode(LineDataSet.Mode.CUBIC_BEZIER);
??????? //添加一個(gè)空的 LineData
??????? lineData = new LineData();
??????? lineChart.setData(lineData);
??????? lineChart.invalidate();
??? }
??? /**
???? * 初始化折線(xiàn)（多條線(xiàn)）
???? *
???? * @param names
???? * @param colors
???? */
??? private void initLineDataSet(List<String> names, List<Integer> colors) {
??????? for (int i = 0; i < names.size(); i++) {
??????????? lineDataSet = new LineDataSet(null, names.get(i));
??????????? lineDataSet.setColor(colors.get(i));
??????????? lineDataSet.setLineWidth(1.5f);
??????????? lineDataSet.setCircleRadius(1.5f);
??????????? lineDataSet.setColor(colors.get(i));
??????????? lineDataSet.setDrawFilled(true);
??????????? lineDataSet.setCircleColor(colors.get(i));
??????????? lineDataSet.setHighLightColor(colors.get(i));
??????????? lineDataSet.setMode(LineDataSet.Mode.CUBIC_BEZIER);
??????????? lineDataSet.setAxisDependency(YAxis.AxisDependency.LEFT);
??????????? lineDataSet.setValueTextSize(10f);
??????????? lineDataSets.add(lineDataSet);
??????? }
??????? //添加一個(gè)空的 LineData
??????? lineData = new LineData();
??????? lineChart.setData(lineData);
??????? lineChart.invalidate();
??? }
??? /**
???? * 動(dòng)態(tài)添加數(shù)據(jù)（一條折線(xiàn)圖）
???? *
???? * @param number
???? */
??? public void addEntry(Float number) {
??????? //最開(kāi)始的時(shí)候才添加 lineDataSet（一個(gè)lineDataSet 代表一條線(xiàn)）
??????? if (lineDataSet.getEntryCount() == 0) {
??????????? lineData.addDataSet(lineDataSet);
??????? }
??????? lineChart.setData(lineData);
??????? //避免集合數(shù)據(jù)過(guò)多，及時(shí)清空（做這樣的處理，并不知道有沒(méi)有用，但還是這樣做了）
??????? if (timeList.size() > 11) {
??????????? timeList.clear();
??????? }
??????? timeList.add(df.format(System.currentTimeMillis()));
??????? Entry entry = new Entry(lineDataSet.getEntryCount(), number);
??????? lineData.addEntry(entry, 0);
??????? //通知數(shù)據(jù)已經(jīng)改變
??????? lineData.notifyDataChanged();
??????? lineChart.notifyDataSetChanged();
??????? //設(shè)置在曲線(xiàn)圖中顯示的最大數(shù)量
??????? lineChart.setVisibleXRangeMaximum(10);
??????? //移到某個(gè)位置
??????? lineChart.moveViewToX(lineData.getEntryCount() - 5);
??? }
??? /**
???? * 動(dòng)態(tài)添加數(shù)據(jù)（一條折線(xiàn)圖）
???? *
???? * @param number
???? * @param time
???? * @param str
???? */
??? public void HistoryEntry(Float number,String time,String str) {
??????? //最開(kāi)始的時(shí)候才添加 lineDataSet（一個(gè)lineDataSet 代表一條線(xiàn)）
??????? if (lineDataSet.getEntryCount() == 0) {
??????????? lineData.addDataSet(lineDataSet);
??????? }
??????? lineChart.setData(lineData);
??????? //避免集合數(shù)據(jù)過(guò)多，及時(shí)清空（做這樣的處理，并不知道有沒(méi)有用，但還是這樣做了）
??????? if (timeList.size() > 100) {
??????????? timeList.clear();
??????? }
??????? timeList.add(time);
??????? Entry entry = new Entry(lineDataSet.getEntryCount(), number);
??????? lineData.addEntry(entry, 0);
??????? //通知數(shù)據(jù)已經(jīng)改變
??????? lineData.notifyDataChanged();
??????? lineChart.notifyDataSetChanged();
??????? //設(shè)置在曲線(xiàn)圖中顯示的最大數(shù)量
??????? lineChart.setVisibleXRangeMaximum(10);
??????? //移到某個(gè)位置
??????? lineChart.moveViewToX(lineData.getEntryCount() - 5);
??????? setDescription(str);
??? }
??? /**
???? * 動(dòng)態(tài)添加數(shù)據(jù)（多條折線(xiàn)圖）
???? *
???? * @param numbers
???? */
??? public void addEntry(List<Float> numbers) {
??????? if (lineDataSets.get(0).getEntryCount() == 0) {
??????????? lineData = new LineData(lineDataSets);
??????????? lineChart.setData(lineData);
??????? }
??????? if (timeList.size() > 11) {
??????????? timeList.clear();
??????? }
??????? timeList.add(df.format(System.currentTimeMillis()));
??????? for (int i = 0; i < numbers.size(); i++) {
??????????? Entry entry = new Entry(lineDataSet.getEntryCount(), numbers.get(i));
??????????? lineData.addEntry(entry, i);
??????????? lineData.notifyDataChanged();
??????????? lineChart.notifyDataSetChanged();
??????????? lineChart.setVisibleXRangeMaximum(6);
??????????? lineChart.moveViewToX(lineData.getEntryCount() - 5);
??????? }
??? }
??? /**
???? * 設(shè)置Y軸值
???? *
???? * @param max
???? * @param min
???? * @param labelCount
???? */
??? public void setYAxis(float max, float min, int labelCount) {
??????? if (max < min) {
??????????? return;
??????? }
??????? leftAxis.setAxisMaximum(max);
??????? leftAxis.setAxisMinimum(min);
??????? leftAxis.setLabelCount(labelCount, false);
??????? rightAxis.setAxisMaximum(max);
??????? rightAxis.setAxisMinimum(min);
??????? rightAxis.setLabelCount(labelCount, false);
??????? lineChart.invalidate();
??? }
??? /**
???? * 設(shè)置高限制線(xiàn)
???? *
???? * @param high
???? * @param name
???? */
??? public void setHightLimitLine(float high, String name, int color) {
??????? if (name == null) {
??????????? name = "高限制線(xiàn)";
??????? }
??????? LimitLine hightLimit = new LimitLine(high, name);
??????? hightLimit.setLineWidth(4f);
??????? hightLimit.setTextSize(10f);
??????? hightLimit.setLineColor(color);
??????? hightLimit.setTextColor(color);
??????? leftAxis.addLimitLine(hightLimit);
??????? lineChart.invalidate();
??? }
??? /**
???? * 設(shè)置低限制線(xiàn)
???? *
???? * @param low
???? * @param name
???? */
??? public void setLowLimitLine(int low, String name) {
??????? if (name == null) {
??????????? name = "低限制線(xiàn)";
??????? }
??????? LimitLine hightLimit = new LimitLine(low, name);
??????? hightLimit.setLineWidth(4f);
??????? hightLimit.setTextSize(10f);
??? ????leftAxis.addLimitLine(hightLimit);
??????? lineChart.invalidate();
??? }
??? /**
???? * 設(shè)置描述信息
???? *
???? * @param str
???? */
??? public void setDescription(String str) {
??????? Description description = new Description();
??????? description.setText(str);
??????? description.setTextColor(Color.MAGENTA);
??????? description.setTextSize(15);
??????? lineChart.setDescription(description);
??????? lineChart.invalidate();
??? }
}2．在activity里面使用
（1）實(shí)列化工具類(lèi)
private var dynamicLineChartManager1: DynamicLineChartManager? = null
局部數(shù)據(jù)
/*
??? * 1.關(guān)于List在kotlin里面沒(méi)有add(),clear() 方法解決辦法
??? *?? 將List改變成MutableList，MutableList源碼可以發(fā)現(xiàn)，常用的clear、addAll等方法都有定義
??? *?? 解決的辦法就是將變量類(lèi)型使用"MutableList"代替"List"就可以了，完整的定義如下代碼：
??? * */
??? private val list: MutableList<Float> = ArrayList() //數(shù)據(jù)集合
??? private val names: MutableList<String> = ArrayList() //折線(xiàn)名字集合
??? private val colour: MutableList<Int> = ArrayList() //折線(xiàn)顏色集合（2）添加局部數(shù)據(jù)以及實(shí)現(xiàn)曲線(xiàn)
//折線(xiàn)名字
??????? names.add("溫度")
??????? names.add("壓強(qiáng)")
??????? names.add("其他")
??????? //折線(xiàn)顏色
??????? colour.add(Color.CYAN)
??????? colour.add(Color.GREEN)
??????? colour.add(Color.BLUE)
//實(shí)現(xiàn)一條曲線(xiàn)
dynamicLineChartManager1 = DynamicLineChartManager(binding.dynamicChart1, names[0], colour[0])
????? //實(shí)現(xiàn)多條曲線(xiàn)
??????? dynamicLineChartManager2 = DynamicLineChartManager(binding.dynamicChart2, names, colour)
（3）添加數(shù)據(jù)到曲線(xiàn)內(nèi)
//添加一條曲線(xiàn)的數(shù)據(jù)
??????????? dynamicLineChartManager1?.addEntry((Math.random() * 100).toFloat())
//添加多條曲線(xiàn)的數(shù)據(jù)
??????????????????? list.add((Math.random() * 50).toFloat() + 10)
??????????????????? list.add((Math.random() * 80).toFloat() + 10)
????????????????? ??list.add((Math.random() * 100).toFloat())
??????????????????? dynamicLineChartManager2!!.addEntry(list)
??????????????????? list.clear()2.3 BarChart柱狀圖
2.3.1布局代碼
<com.github.mikephil.charting.charts.CombinedChart
???? ???????android:id="@+id/chart1"
??????????? android:layout_width="match_parent"
??????????? android:layout_height="360dp"/>2.3.2 Activity實(shí)現(xiàn)代碼
1.寫(xiě)一個(gè)工具類(lèi)以便我們使用
類(lèi)名字為：CombinedChartManager
public class CombinedChartManager {
??? private CombinedChart mCombinedChart;
??? private YAxis leftAxis;
??? private YAxis rightAxis;
??? private XAxis xAxis;
??? public CombinedChartManager(CombinedChart combinedChart) {
??????? this.mCombinedChart = combinedChart;
??????? leftAxis = mCombinedChart.getAxisLeft();
??????? rightAxis = mCombinedChart.getAxisRight();
??????? xAxis = mCombinedChart.getXAxis();
??? }
??? /**
???? * 初始化Chart
???? */
??? private void initChart() {
??????? //不顯示描述內(nèi)容
??????? mCombinedChart.getDescription().setEnabled(false);
??????? mCombinedChart.setDrawOrder(new CombinedChart.DrawOrder[]{
??????????????? CombinedChart.DrawOrder.BAR,
??????????????? CombinedChart.DrawOrder.LINE
??????? });
??????? mCombinedChart.setBackgroundColor(Color.WHITE);
??????? mCombinedChart.setDrawGridBackground(false);
??????? mCombinedChart.setDrawBarShadow(false);
??????? mCombinedChart.setHighlightFullBarEnabled(false);
??????? //顯示邊界
??????? mCombinedChart.setDrawBorders(true);
??????? //圖例說(shuō)明
??????? Legend legend = mCombinedChart.getLegend();
??????? legend.setWordWrapEnabled(true);
??????? legend.setVerticalAlignment(Legend.LegendVerticalAlignment.BOTTOM);
??????? legend.setHorizontalAlignment(Legend.LegendHorizontalAlignment.CENTER);
????? ??legend.setOrientation(Legend.LegendOrientation.HORIZONTAL);
??????? legend.setDrawInside(false);
??????? //Y軸設(shè)置
??????? rightAxis.setDrawGridLines(false);
??????? rightAxis.setAxisMinimum(0f);
??????? leftAxis.setDrawGridLines(false);
??????? leftAxis.setAxisMinimum(0f);
??????? mCombinedChart.animateX(2000); // 立即執(zhí)行的動(dòng)畫(huà),x軸
??? }
??? /**
???? * 設(shè)置X軸坐標(biāo)值
???? *
???? * @param xAxisValues x軸坐標(biāo)集合
???? */
??? public void setXAxis(final List<String> xAxisValues) {
??????? //設(shè)置X軸在底部
??????? XAxis xAxis = mCombinedChart.getXAxis();
??????? xAxis.setPosition(XAxis.XAxisPosition.BOTTOM);
??????? xAxis.setGranularity(1f);
??????? xAxis.setLabelCount(xAxisValues.size() - 1,false);
??????? xAxis.setValueFormatter(new IAxisValueFormatter() {
??????????? @Override
??????????? public String getFormattedValue(float value, AxisBase axis) {
??????????????? return xAxisValues.get((int) value % xAxisValues.size());
??????????? }
??????? });
??????? mCombinedChart.invalidate();
??? }
??? /**
???? * 得到折線(xiàn)圖(一條)
???? *
???? * @param lineChartY 折線(xiàn)Y軸值
???? * @param lineName?? 折線(xiàn)圖名字
???? * @param lineColor? 折線(xiàn)顏色
???? * @return
???? */
??? private LineData getLineData(List<Float> lineChartY, String lineName, int lineColor) {
??????? LineData lineData = new LineData();
??????? ArrayList<Entry> yValue = new ArrayList<>();
??????? for (int i = 0; i < lineChartY.size(); i++) {
??????????? yValue.add(new Entry(i, lineChartY.get(i)));
??????? }
??????? LineDataSet dataSet = new LineDataSet(yValue, lineName);
??????? dataSet.setColor(lineColor);
??????? dataSet.setCircleColor(lineColor);
??????? dataSet.setValueTextColor(lineColor);
??????? dataSet.setCircleSize(1);
??????? //顯示值
??????? dataSet.setDrawValues(true);
??????? dataSet.setValueTextSize(10f);
??????? dataSet.setMode(LineDataSet.Mode.CUBIC_BEZIER);
??????? dataSet.setAxisDependency(YAxis.AxisDependency.LEFT);
??????? lineData.addDataSet(dataSet);
??????? return lineData;
??? }
??? /**
???? * 得到折線(xiàn)圖(多條)
???? *
???? * @param lineChartYs 折線(xiàn)Y軸值
???? * @param lineNames?? 折線(xiàn)圖名字
???? * @param lineColors? 折線(xiàn)顏色
???? * @return
???? */
??? private LineData getLineData(List<List<Float>> lineChartYs, List<String> lineNames, List<Integer> lineColors) {
??????? LineData lineData = new LineData();
??????? for (int i = 0; i < lineChartYs.size(); i++) {
??????????? ArrayList<Entry> yValues = new ArrayList<>();
??????????? for (int j = 0; j < lineChartYs.get(i).size(); j++) {
????????????? ??yValues.add(new Entry(j, lineChartYs.get(i).get(j)));
??????????? }
??????????? LineDataSet dataSet = new LineDataSet(yValues, lineNames.get(i));
??????????? dataSet.setColor(lineColors.get(i));
??????????? dataSet.setCircleColor(lineColors.get(i));
??????????? dataSet.setValueTextColor(lineColors.get(i));
??????????? dataSet.setCircleSize(1);
??????????? dataSet.setDrawValues(true);
??????????? dataSet.setValueTextSize(10f);
??????????? dataSet.setMode(LineDataSet.Mode.CUBIC_BEZIER);
??????????? dataSet.setAxisDependency(YAxis.AxisDependency.LEFT);
??????????? lineData.addDataSet(dataSet);
??????? }
??????? return lineData;
??? }
??? /**
???? * 得到柱狀圖
???? *
???? * @param barChartY Y軸值
???? * @param barName?? 柱狀圖名字
???? * @param barColor? 柱狀圖顏色
???? * @return
???? */
??? private BarData getBarData(List<Float> barChartY, String barName, int barColor) {
??????? BarData barData = new BarData();
??????? ArrayList<BarEntry> yValues = new ArrayList<>();
??????? for (int i = 0; i < barChartY.size(); i++) {
??????????? yValues.add(new BarEntry(i, barChartY.get(i)));
??????? }
??????? BarDataSet barDataSet = new BarDataSet(yValues, barName);
??????? barDataSet.setColor(barColor);
??????? barDataSet.setValueTextSize(10f);
??????? barDataSet.setValueTextColor(barColor);
??????? barDataSet.setAxisDependency(YAxis.AxisDependency.LEFT);
??????? barData.addDataSet(barDataSet);
??????? //以下是為了解決 柱狀圖 左右兩邊只顯示了一半的問(wèn)題 根據(jù)實(shí)際情況 而定
??????? xAxis.setAxisMinimum(-0.5f);
??????? xAxis.setAxisMaximum((float) (barChartY.size()- 0.5));
??????? return barData;
??? }
??? /**
???? * 得到柱狀圖(多條)
???? *
? ???* @param barChartYs Y軸值
???? * @param barNames?? 柱狀圖名字
???? * @param barColors? 柱狀圖顏色
???? * @return
???? */
??? private BarData getBarData(List<List<Float>> barChartYs, List<String> barNames, List<Integer> barColors) {
??????? List<IBarDataSet> lists = new ArrayList<>();
??????? for (int i = 0; i < barChartYs.size(); i++) {
??????????? ArrayList<BarEntry> entries = new ArrayList<>();
??????????? for (int j = 0; j < barChartYs.get(i).size(); j++) {
??????????????? entries.add(new BarEntry(j, barChartYs.get(i).get(j)));
??????????? }
??????????? BarDataSet barDataSet = new BarDataSet(entries, barNames.get(i));
??????????? barDataSet.setColor(barColors.get(i));
??????????? barDataSet.setValueTextColor(barColors.get(i));
??????????? barDataSet.setValueTextSize(10f);
??????????? barDataSet.setAxisDependency(YAxis.AxisDependency.LEFT);
??????????? lists.add(barDataSet);
??????? }
??????? BarData barData = new BarData(lists);
??????? int amount = barChartYs.size(); //需要顯示柱狀圖的類(lèi)別 數(shù)量
??????? float groupSpace = 0.12f; //柱狀圖組之間的間距
??????? float barSpace = (float) ((1 - 0.12) / amount / 10); // x4 DataSet
??????? float barWidth = (float) ((1 - 0.12) / amount / 10 * 9); // x4 DataSet
??????? // (0.2 + 0.02) * 4 + 0.12 = 1.00 即100% 按照百分百布局
??????? //柱狀圖寬度
??????? barData.setBarWidth(barWidth);
??????? //(起始點(diǎn)、柱狀圖組間距、柱狀圖之間間距)
??????? barData.groupBars(0, groupSpace, barSpace);
??????? return barData;
??? }
??? /**
???? * 顯示混合圖(柱狀圖+折線(xiàn)圖)
???? *
???? * @param xAxisValues X軸坐標(biāo)
???? * @param barChartY?? 柱狀圖Y軸值
???? * @param lineChartY? 折線(xiàn)圖Y軸值
???? * @param barName???? 柱狀圖名字
???? * @param lineName??? 折線(xiàn)圖名字
???? * @param barColor??? 柱狀圖顏色
???? * @param lineColor?? 折線(xiàn)圖顏色
???? */
??? public void showCombinedChart(
??????????? List<String> xAxisValues, List<Float> barChartY, List<Float> lineChartY
??????????? , String barName, String lineName, int barColor, int lineColor) {
??????? initChart();
??????? setXAxis(xAxisValues);
????? ??CombinedData combinedData = new CombinedData();
??????? combinedData.setData(getBarData(barChartY, barName, barColor));
??????? combinedData.setData(getLineData(lineChartY, lineName, lineColor));
??????? mCombinedChart.setData(combinedData);
??????? mCombinedChart.invalidate();
??? }
??? /**
???? * 顯示混合圖(柱狀圖)
???? *
???? * @param xAxisValues X軸坐標(biāo)
???? * @param barChartY?? 柱狀圖Y軸值
???? * @param lineChartY? 折線(xiàn)圖Y軸值
???? * @param barName???? 柱狀圖名字
???? * @param lineName??? 折線(xiàn)圖名字
???? * @param barColor??? 柱狀圖顏色
???? * @param lineColor?? 折線(xiàn)圖顏色
???? */
??? public void showbinedChart(
??????????? List<String> xAxisValues, List<Float> barChartY
??????????? , String barName, int barColor) {
??????? initChart();
??????? setXAxis(xAxisValues);
??????? CombinedData combinedData = new CombinedData();
??????? combinedData.setData(getBarData(barChartY, barName, barColor));
??????? mCombinedChart.setData(combinedData);
??????? mCombinedChart.invalidate();
??? }
??? /**
???? * 顯示混合圖(柱狀圖+折線(xiàn)圖)
???? *
???? * @param xAxisValues X軸坐標(biāo)
???? * @param barChartYs? 柱狀圖Y軸值
???? * @param lineChartYs 折線(xiàn)圖Y軸值
???? * @param barNames??? 柱狀圖名字
???? * @param lineNames?? 折線(xiàn)圖名字
???? * @param barColors?? 柱狀圖顏色
???? * @param lineColors? 折線(xiàn)圖顏色
???? */
??? public void showCombinedChart(
??????????? List<String> xAxisValues, List<List<Float>> barChartYs, List<List<Float>> lineChartYs,
??????????? List<String> barNames, List<String> lineNames, List<Integer> barColors, List<Integer> lineColors) {
??????? initChart();
??????? setXAxis(xAxisValues);
??????? CombinedData combinedData = new CombinedData();
??????? combinedData.setData(getBarData(barChartYs, barNames, barColors));
??????? combinedData.setData(getLineData(lineChartYs, lineNames, lineColors));
??????? mCombinedChart.setData(combinedData);
??????? mCombinedChart.invalidate();
??? }
}
2在Activity里面使用
（1）添加局部數(shù)據(jù)以及實(shí)現(xiàn)曲線(xiàn)
???? ??private fun intDate(){
??????? //x軸數(shù)據(jù)
??????? val xData: MutableList<String> = ArrayList()
??????? for (i in 0..20) {
??????????? xData.add(i.toString())
??????? }
??????? //y軸數(shù)據(jù)集合
??????? val yBarDatas: MutableList<List<Float>> = ArrayList()
??????? //4種直方圖
??????? for (i in 0..3) {
??????????? //y軸數(shù)
??????????? val yData: MutableList<Float> = ArrayList()
??????????? for (j in 0..20) {
??????????????? yData.add((Math.random() * 100).toFloat())
??????????? }
??????????? yBarDatas.add(yData)
??????? }
??????? //顏色集合
??????? val colors: MutableList<Int> = ArrayList()
??????? colors.add(Color.BLUE)
??????? colors.add(Color.RED)
??????? colors.add(Color.YELLOW)
??????? colors.add(Color.CYAN)
??????? //管理類(lèi)
?????? ?val combineChartManager1 = CombinedChartManager(binding.chart1)
??????? combineChartManager1.showbinedChart(
??????????? xData, yBarDatas.get(0),
??????????? "直方圖", colors.get(0)
??????? )
??? }2.4?曲線(xiàn)混合柱狀圖
2.4.1布局代碼
? <com.github.mikephil.charting.charts.CombinedChart
??????????? android:id="@+id/chart1"
??????????? android:layout_width="match_parent"
??????????? android:layout_height="360dp"/>2.4.2 Activity實(shí)現(xiàn)代碼
1..實(shí)現(xiàn)混合顯示（工具類(lèi)已經(jīng)提供）
private fun intDate(){
??????? //x軸數(shù)據(jù)
??????? val xData: MutableList<String> = ArrayList()
??????? for (i in 0..20) {
??????????? xData.add(i.toString())
??????? }
??????? //y軸數(shù)據(jù)集合
??????? val yBarDatas: MutableList<List<Float>> = ArrayList()
??????? //4種直方圖
??????? for (i in 0..3) {
??????????? //y軸數(shù)
??????????? val yData: MutableList<Float> = ArrayList()
??????????? for (j in 0..20) {
??????????????? yData.add((Math.random() * 100).toFloat())
??????????? }
??????????? yBarDatas.add(yData)
??????? }
????? ??//y軸數(shù)據(jù)集合
??????? val yLineDatas: MutableList<List<Float>> = ArrayList()
??????? //4種直方圖
??????? for (i in 0..3) {
??????????? //y軸數(shù)
??????????? val yData: MutableList<Float> = ArrayList()
??????????? for (j in 0..20) {
??????????????? yData.add((Math.random() * 100).toFloat())
??????????? }
??????????? yLineDatas.add(yData)
??????? }
??????? //名字集合
??????? val barNames: MutableList<String> = ArrayList()
??????? barNames.add("直方圖一")
??????? barNames.add("直方圖二")
??????? barNames.add("直方圖三")
??????? barNames.add("直方圖四")
??????? //顏色集合
??????? val colors: MutableList<Int> = ArrayList()
??????? colors.add(Color.BLUE)
??????? colors.add(Color.RED)
??????? colors.add(Color.YELLOW)
??????? colors.add(Color.CYAN)
?????? ?//豎狀圖管理類(lèi)
??????? val lineNames: MutableList<String> = ArrayList()
??????? lineNames.add("折線(xiàn)圖一")
??????? lineNames.add("折線(xiàn)圖二")
??????? lineNames.add("折線(xiàn)圖三")
??????? lineNames.add("折線(xiàn)圖四")
??????? //管理類(lèi)
??????? val combineChartManager1 = CombinedChartManager(binding.chart1)
??????? combineChartManager1.showCombinedChart(xData, yBarDatas.get(0), yLineDatas.get(0),
??????????????? "直方圖", "線(xiàn)性圖", colors.get(0), colors.get(1));
??????? val combineChartManager2 = CombinedChartManager(binding.chart2)
??????? combineChartManager2.showCombinedChart(
??????????? xData, yBarDatas, yLineDatas, barNames, lineNames,
??????????? colors, colors
??????? )
??? }2.5 RadarChart雷達(dá)圖
2.5.1布局代碼‘
<com.github.mikephil.charting.charts.RadarChart
??????????? android:id="@+id/radar"
??????????? android:layout_marginTop="20dp"
??????????? android:layout_width="match_parent"
??????????? android:layout_height="300dp">2.5.2 Activity實(shí)現(xiàn)代碼
1.實(shí)現(xiàn)代碼
?? fun radar(){
??????? val radar: RadarChart? = binding.radar
??????? var list: MutableList<RadarEntry>? = null
??????? var list2: MutableList<RadarEntry>? = null
??????? list = ArrayList()
??????? list2 = ArrayList()
??????? list.add(RadarEntry(30F))
??????? list.add(RadarEntry(35F))
??????? list.add(RadarEntry(40F))
??????? list.add(RadarEntry(35F))
??????? list.add(RadarEntry(20F))
??????? list2.add(RadarEntry(50F))
??????? list2.add(RadarEntry(45F))
??????? list2.add(RadarEntry(55F))
??????? list2.add(RadarEntry(40F))
??????? list2.add(RadarEntry(60F))
??????? val radarDataSet = RadarDataSet(list, "男性")
??????? radarDataSet.color = Color.RED
??????? val radarDataSet1 = RadarDataSet(list2, "女性")
??????? radarDataSet1.color = Color.BLUE
??????? val radarData = RadarData(radarDataSet)
??????? radarData.addDataSet(radarDataSet1)
??????? radar!!.data = radarData
??????? //Y軸最小值不設(shè)置會(huì)導(dǎo)致數(shù)據(jù)中最小值默認(rèn)成為Y軸最小值
??????? radar.yAxis.axisMinimum = 0f
??????? //大字的顏色（中心點(diǎn)和各頂點(diǎn)的連線(xiàn)）
??????? radar.webColor = Color.CYAN
??????? //所有五邊形的顏色
??????? radar.webColorInner = Color.CYAN
??????? //整個(gè)控件的背景顏色
??????? radar.setBackgroundColor(Color.LTGRAY)
??????? val xAxis = radar.xAxis
??????? xAxis.textColor = Color.RED //X軸字體顏色
??????? xAxis.textSize = 16f //X軸字體大小
??????? //自定義X軸坐標(biāo)描述（也就是五個(gè)頂點(diǎn)上的文字,默認(rèn)是0、1、2、3、4）
??????? xAxis.valueFormatter =
??????????? IAxisValueFormatter { v, axisBase ->
??????????????? if (v == 0f) {
??????????????????? return@IAxisValueFormatter "語(yǔ)文"
??????????????? }
??????????????? if (v == 1f) {
??????????????????? return@IAxisValueFormatter "數(shù)學(xué)"
??????????????? }
???? ???????????if (v == 2f) {
??????????????????? return@IAxisValueFormatter "英語(yǔ)"
??????????????? }
??????????????? if (v == 3f) {
??????????????????? return@IAxisValueFormatter "生物"
??????????????? }
??????????????? if (v == 4f) {
??????????????????? "地理"
?? ?????????????} else ""
??????????? }
??????? //是否繪制雷達(dá)框上對(duì)每個(gè)點(diǎn)的數(shù)據(jù)的標(biāo)注??? 和Y軸坐標(biāo)點(diǎn)一般不同時(shí)存在 否則顯得很擠? 默認(rèn)為true
??????? radarDataSet.setDrawValues(false)
??????? radarDataSet1.setDrawValues(false)
??????? radarDataSet.valueTextSize = 12f //數(shù)據(jù)值得字體大?。ㄟ@里只是寫(xiě)在這）
??????? radarDataSet.valueTextColor = Color.CYAN //數(shù)據(jù)值得字體顏色（這里只是寫(xiě)在這）
??????? val yAxis = radar!!.yAxis
??????? //是否繪制Y軸坐標(biāo)點(diǎn)? 和雷達(dá)框數(shù)據(jù)一般不同時(shí)存在 否則顯得很擠 默認(rèn)為true
??????? yAxis.setDrawLabels(true)
??????? yAxis.textColor = Color.GRAY //Y軸坐標(biāo)數(shù)據(jù)的顏色
??????? yAxis.axisMaximum = 80f //Y軸最大數(shù)值
??????? yAxis.axisMinimum = 0f //Y軸最小數(shù)值
??????? //Y軸坐標(biāo)的個(gè)數(shù)??? 第二個(gè)參數(shù)一般填false???? true表示強(qiáng)制設(shè)置標(biāo)簽數(shù) 可能會(huì)導(dǎo)致X軸坐標(biāo)顯示不全等問(wèn)題
??????? yAxis.setLabelCount(10, false)
??????? //對(duì)于右下角一串字母的操作
??????? radar.description.isEnabled = false //是否顯示右下角描述
??????? radar.description.text = "這是修改那串英文的方法" //修改右下角字母的顯示
??????? radar.description.textSize = 20f //字體大小
??????? radar.description.textColor = Color.CYAN //字體顏色
??????? //圖例
??????? val legend = radar.legend
??????? legend.isEnabled = true //是否顯示圖例
??????? legend.position = Legend.LegendPosition.BELOW_CHART_CENTER //圖例的位置
??? }2.6 PieChart餅狀圖
2.6.1布局代碼
<com.github.mikephil.charting.charts.PieChart
??????????? android:id="@+id/pie"
??????????? android:layout_width="match_parent"
??????????? android:layout_height="300dp">
??????? </com.github.mikephil.charting.charts.PieChart>2.6.2 Activity實(shí)現(xiàn)代碼
1.實(shí)現(xiàn)代碼
fun pie(){
??????? val pie: PieChart = binding.pie
??????? list = ArrayList()
??????? (list as ArrayList<PieEntry>).add(PieEntry(56F, "男性"))
??????? (list as ArrayList<PieEntry>).add(PieEntry(44F, "女性"))
??????? val pieDataSet = PieDataSet(list, "")
??????? val pieData = PieData(pieDataSet)
??????? pie.data = pieData
??????? pie.setBackgroundColor(Color.GRAY)
??????? //設(shè)置各個(gè)數(shù)據(jù)的顏色
??????? pieDataSet.setColors(Color.RED, Color.BLUE)
??????? //實(shí)體扇形的空心圓的半徑?? 設(shè)置成0時(shí)就是一個(gè)圓 而不是一個(gè)環(huán)
??????? pie.holeRadius = 30f
??????? //中間半透明白色圓的半徑??? 設(shè)置成0時(shí)就是隱藏
??????? pie.transparentCircleRadius = 30f
??????? //設(shè)置中心圓的顏色
??????? pie.setHoleColor(Color.CYAN)
??????? //設(shè)置中心部分的字? （一般中間白色圓不隱藏的情況下才設(shè)置）
??????? pie.centerText = "男女比例"
??????? //設(shè)置中心字的字體顏色
??????? pie.setCenterTextColor(Color.RED)
??????? //設(shè)置中心字的字體大小
??????? pie.setCenterTextSize(16f)
??????? //設(shè)置描述的字體大?。▓D中的? 男性? 女性）
??????? pie.setEntryLabelTextSize(20f)
??????? //設(shè)置數(shù)據(jù)的字體大小? （圖中的? 44???? 56）
??????? pieDataSet.valueTextSize = 20f
??????? //設(shè)置描述的位置
??????? pieDataSet.xValuePosition = PieDataSet.ValuePosition.OUTSIDE_SLICE
??????? pieDataSet.valueLinePart1Length = 0.6f //設(shè)置描述連接線(xiàn)長(zhǎng)度
??????? //設(shè)置數(shù)據(jù)的位置
??????? pieDataSet.yValuePosition = PieDataSet.ValuePosition.OUTSIDE_SLICE
??????? pieDataSet.valueLinePart2Length = 0.6f //設(shè)置數(shù)據(jù)連接線(xiàn)長(zhǎng)度
??????? //設(shè)置兩根連接線(xiàn)的顏色
??????? pieDataSet.valueLineColor = Color.WHITE
??????? //對(duì)于右下角一串字母的操作
??????? pie.description.isEnabled = false //是否顯示右下角描述
??????? pie.description.text = "這是修改那串英文的方法" //修改右下角字母的顯示
??????? pie.description.textSize = 20f //字體大小
??????? pie.description.textColor = Color.RED //字體顏色
??????? //圖例
??????? val legend = pie.legend
??????? legend.isEnabled = true //是否顯示圖例
??????? legend.position = Legend.LegendPosition.BELOW_CHART_CENTER //圖例的位置
??????? //數(shù)據(jù)更新
??????? pie.notifyDataSetChanged()
??????? pie.invalidate()
??????? //動(dòng)畫(huà)（如果使用了動(dòng)畫(huà)可以則省去更新數(shù)據(jù)的那一步）
??????? pie.animateY(3000) //在Y軸的動(dòng)畫(huà)? 參數(shù)是動(dòng)畫(huà)執(zhí)行時(shí)間 毫秒為單位
??????? //???? ???line.animateX(2000); //X軸動(dòng)畫(huà)
??? //??????? line.animateXY(2000,2000);//XY兩軸混合動(dòng)畫(huà)
??? }三．單個(gè)房間溫度圖表顯示功能實(shí)現(xiàn)
3.1?效果展示
3.2?數(shù)據(jù)庫(kù)實(shí)現(xiàn)
1. 創(chuàng)建數(shù)據(jù)庫(kù)
類(lèi)名：（MyDatabaseHelper）
class MyDatabaseHelper(
??? private val mContext: Context, name: String?,
??? factory: CursorFactory?, version: Int
) :
??? SQLiteOpenHelper(mContext, name, factory, version) {
??? override fun onCreate(db: SQLiteDatabase) {
??????? db.execSQL(CREATE)
??????? //Toast.makeText(mContext, "Create succeeded", Toast.LENGTH_SHORT).show()
??? }
??? override fun onUpgrade(db: SQLiteDatabase, oldVersion: Int, newVersion: Int) {}
??? // TODO 創(chuàng)建數(shù)據(jù)庫(kù)后，對(duì)數(shù)據(jù)庫(kù)的操作
??? // sql中Constant是用來(lái)存放一些關(guān)于數(shù)據(jù)庫(kù)的常量的類(lèi)
??? // 類(lèi)型有：Integer、text文本、varchar(n)、real浮點(diǎn)型、blob二進(jìn)制類(lèi)型
??? companion object {
??????? const val CREATE =? "create table temp(_id integer primary key autoincrement,Home text,Date text,time text,temperatures real,hum real)"
??? }
??? fun deleteDatabase(context: Context, databaseName: String?): Boolean {
??????? return context.deleteDatabase(databaseName)
??? }
}2. 數(shù)據(jù)庫(kù)的使用
（1）實(shí)例化
private var dbHelper: MyDatabaseHelper? = null
dbHelper = MyDatabaseHelper(this, "temperature.db", null, 1)（放到開(kāi)始運(yùn)行部分）（2）創(chuàng)建數(shù)據(jù)庫(kù)
private fun sql() {
??????? dbHelper?.writableDatabase;
}（3）刪除數(shù)據(jù)庫(kù)
????? private fun Detele(){
??????? dbHelper?.deleteDatabase(applicationContext, "temperature.db");
}
（4）插入數(shù)據(jù)
fun add(){
??????? val formatter = SimpleDateFormat("yyyy-MM-dd")
??????? val date: String = formatter.format(Date())
??????? /*
??????? * HH-mm-ss(24時(shí)制)
??????? * hh-mm-ss(12時(shí)制)
? ??????* */
??????? val formatte = SimpleDateFormat("HH:mm:ss")
??????? val time = formatte.format(Date())
??????? val db: SQLiteDatabase = dbHelper!!.writableDatabase
??????? val values = ContentValues()
??????? // 開(kāi)始組裝第一條數(shù)據(jù)
??????? values.put("Home", (Math.random() * 100).toString())
??????? values.put("Date", date)
??????? values.put("time", time)
??????? values.put("temperatures", (Math.random() * 100).toFloat())
??????? values.put("hum", (Math.random() * 100).toFloat())
??????? db.insert("temp", null, values) // 插入第一條數(shù)據(jù)
??????? values.clear()
}??（5）查詢(xún)數(shù)據(jù)
fun find(){
var sql : String = "select * from `temp` where `Date` = '2021-11-02';"
??????? val cursor: Cursor = db.rawQuery(sql,null)
??????? if (cursor.moveToFirst()) {
??????????? do {
??????????????? val name: String = cursor.getString(
??????????????????? cursor.getColumnIndex("Date")
??????????????? )
??????????????? val author: String = cursor.getString(
??????????? ????????cursor.getColumnIndex("time")
??????????????? )
??????????????? val pages: Float = cursor.getFloat(
??????????????????? cursor.getColumnIndex("temperatures")
??????????????? )
??????????????? Log.d("MainActivity", "book name is $name")
??????????? ????Log.d("MainActivity", "book author is $author")
??????????????? Log.d("MainActivity", "book pages is $pages")
??????????? } while (cursor.moveToNext())
??????? }
??????? cursor.close()
}3.3布局代碼
<?xml version="1.0" encoding="utf-8"?>
<ScrollView
??? xmlns:android="http://schemas.android.com/apk/res/android"
??? xmlns:app="http://schemas.android.com/apk/res-auto"
??? android:layout_width="match_parent"
??? android:layout_height="match_parent"
??? >
??? <LinearLayout
??????? android:layout_width="match_parent"
??????? android:layout_height="match_parent"
??????? android:orientation="vertical">
??????? <androidx.appcompat.widget.Toolbar
??????????? android:background="@color/shape3"
??????????? android:id="@+id/toolbar"
??????????? android:layout_width="match_parent"
??????????? android:layout_height="?actionBarSize"
??????????? android:theme="@style/ThemeOverlay.AppCompat.Dark.ActionBar"
??????????? app:title="SeriaPortHome"
??????????? app:titleTextColor="@android:color/white"
??????????? >
??????? </androidx.appcompat.widget.Toolbar>
??????? <androidx.cardview.widget.CardView
??????????? style="@style/CardViews"
??????????? app:cardCornerRadius="22dp">
??????????? <LinearLayout
??????????????? android:layout_width="match_parent"
??????????????? android:layout_height="wrap_content"
??????????????? android:gravity="center_vertical"
??????????????? android:layout_marginLeft="20dp">
??????????????? <TextView
??????????????????? android:layout_width="66dp"
?????????????? ?????android:layout_height="wrap_content"
??????????????????? android:layout_marginTop="12dp"
??????????????????? android:layout_marginBottom="12dp"
??????????????????? android:alpha="0.4"
??????????????????? android:text="串口號(hào)"
??????????????????? android:gravity="center"
??????????????????? android:textColor="@color/black"
??????????????????? android:textSize="14sp" />
??????????????? <EditText
??????????????????? android:layout_weight="1"
??????????????????? android:id="@+id/EditText1"
??????????????????? android:layout_width="match_parent"
??????????????????? android:layout_height="match_parent"
??????????????????? android:background="@null"
??????????????????? android:hint="無(wú)"
????????? ??????????android:inputType="number"
??????????????????? android:textColor="@color/shape1"
??????????????????? android:textSize="14sp"
??????????????????? android:layout_marginLeft="14dp" />
??????????????? <Spinner
??????????????????? android:id="@+id/sp_serial"
??????????????????? android:layout_width="100dp"
??????????????????? android:layout_height="wrap_content"
??????????????????? android:layout_marginStart="8dp"
??????????????????? android:layout_marginEnd="15dp">
??????????????? </Spinner>
?????? ?????</LinearLayout>
??????? </androidx.cardview.widget.CardView>
??????? <androidx.cardview.widget.CardView
??????????? style="@style/CardViews"
??????????? app:cardCornerRadius="22dp">
??????????? <LinearLayout
??????????????? android:layout_width="match_parent"
??????????????? android:layout_height="wrap_content"
??????????????? android:gravity="center_vertical"
??????????????? android:layout_marginLeft="20dp">
??????????????? <TextView
??????????????????? android:layout_width="66dp"
??????????????????? android:layout_height="wrap_content"
??????????????????? android:layout_marginTop="12dp"
??????????????????? android:layout_marginBottom="12dp"
??????????????????? android:alpha="0.4"
??????????????????? android:gravity="center"
??????????????????? android:text="波特率"
??????????????????? android:textColor="@color/black"
??????????????????? android:textSize="14sp" />
??????????????? <EditText
??????????????????? android:id="@+id/EditText2"
??????????????????? android:layout_weight="1"
??????????????????? android:layout_width="match_parent"
??????????????????? android:layout_height="match_parent"
??????????????????? android:background="@null"
??????????????????? android:hint="無(wú)"
??????????????????? android:inputType="number"
??????????????????? android:textColor="@color/shape1"
??????????????????? android:textSize="14sp"
??????????????????? android:layout_marginLeft="14dp" />
??????????????? <Spinner
??????????????????? android:id="@+id/sp_bote"
??????????????????? android:layout_width="100dp"
??????????????????? android:layout_height="wrap_content"
??????????????????? android:layout_marginStart="8dp"
??????????????????? android:layout_marginEnd="15dp">
??????????????? </Spinner>
??????????? </LinearLayout>
??????? </androidx.cardview.widget.CardView>
??????? <LinearLayout
??????????? android:layout_width="match_parent"
??????????? android:layout_height="wrap_content"
??????????? android:gravity="center"
??????????? android:layout_marginTop="20dp"
??????????? android:layout_marginBottom="25dp"
??????????? android:orientation="horizontal">
??????????? <Button
??????????????? android:id="@+id/open"
??????????????? android:layout_width="wrap_content"
?? ?????????????android:layout_height="44dp"
??????????????? android:background="@drawable/shape_bt"
??????????????? android:gravity="center"
??????????????? android:text="打開(kāi)串口"
??????????????? android:textColor="@android:color/white"
??????????????? android:textSize="@dimen/sp_14" />
??????????? <View
??????????????? android:layout_width="100dp"
??????????????? android:layout_height="match_parent"
??????????????? >
??????????? </View>
??????????? <Button
??????????????? android:id="@+id/SimulateData"
??????????????? android:layout_width="wrap_content"
??????????????? android:layout_height="44dp"
??????????????? android:background="@drawable/shape_bt"
??????????????? android:gravity="center"
??????????????? android:text="模擬數(shù)據(jù)"
??????????????? android:textColor="@android:color/white"
??????????????? android:textSize="@dimen/sp_14" />
??????? </LinearLayout>
??????? <com.github.mikephil.charting.charts.LineChart
??????????? android:id="@+id/dynamic_chart1"
??????????? android:layout_width="match_parent"
??????????? android:layout_height="380dp"/>
??????? <Button
??????????? android:layout_width="match_parent"
??????????? android:layout_height="wrap_content"
??????????? android:id="@+id/addEntry"
??????????? android:text="隨機(jī)數(shù)據(jù)"
??????????? />
??? </LinearLayout>
</ScrollView>3.4 Activity實(shí)現(xiàn)代碼
1.實(shí)列化以及局部數(shù)據(jù)
//串口
??? private var serialPortFinder: SerialPortFinder? = null
??? private var serialHelper: SerialHelper? = null
??? //曲線(xiàn)
??? private var dynamicLineChartManager1: DynamicLineChartManager? = null
??? private val list: MutableList<Float> = ArrayList() //數(shù)據(jù)集合
??? private val names: MutableList<String> = ArrayList() //折線(xiàn)名字集合
private val colour: MutableList<Int> = ArrayList() //折線(xiàn)顏色集合
//線(xiàn)程使用
private val mHandler = Handler()2.串口實(shí)現(xiàn)函數(shù)以及數(shù)據(jù)跟新
/*
??? * TODO 串口使用初始化
??? * */
?private fun openSerialPort(){
??????? serialPortFinder = SerialPortFinder()
??????? serialHelper = object : SerialHelper() {
??????????? override fun onDataReceived(comBean: ComBean) {
??????????????? runOnUiThread {
??????????????????? /*
??????????????????? * TODO 獲取串口數(shù)據(jù)已經(jīng)保存數(shù)據(jù)
??????????????????? *? */
??????????????????? val home =
??????????????????????? ByteUtil.hexStringToString(ByteUtil.bytesToHexString(comBean.bRec)).toString().substring(0, 2)
??????????????????? val tem =
??????????????????????? ByteUtil.hexStringToString(ByteUtil.bytesToHexString(comBean.bRec)).toString().substring(5, 9)
??????????????????? val hum =
? ??????????????????????ByteUtil.hexStringToString(ByteUtil.bytesToHexString(comBean.bRec)).toString().substring(12, 16)
??????????????????? when(home.toInt()) {
??????????????????????? 1 -> {
??????????????????????????? list.add(tem.toFloat())
??????????? ????????????????list.add(hum.toFloat())
??????????????????????????? dynamicLineChartManager1!!.addEntry(list)
??????????????????????????? list.clear()
??????????????????????? }
??????????????????????? 2 -> LogUtil.d("home","2")
??????????????????????? 3 -> LogUtil.d("home","3")
??????????????????????? 4 -> LogUtil.d("home","4")
??????????????????????? else -> {
??????????????????????? }
??????????????????? }
??????????????? }
??????????? }
??????? }
??????? //獲取串口地址
??????? val ports = serialPortFinder!!.allDevicesPath
??????? //設(shè)置波特率地址
??????? val botes = arrayOf(
??????????? "0",
??????????? "50",
??????????? "75",
??????????? "110",
??????????? "134",
??????????? "150",
??????????? "200",
??????????? "300",
?????? ?????"600",
??????????? "1200",
??????????? "1800",
??????????? "2400",
??????????? "4800",
??????????? "9600",
??????????? "19200",
??????????? "38400",
??????????? "57600",
??????????? "115200",
??????????? "230400",
??????????? "460800",
??????????? "500000",
??????????? "576000",
??????????? "921600",
??????????? "1000000",
??????????? "1152000",
??????????? "1500000",
??????????? "2000000",
??????????? "2500000",
??????????? "3000000",
??????????? "3500000",
??????????? "4000000"
??????? )
??????? val spAdapter = SpAdapter(this)
??????? /*
???????? * TODO 適配下拉列表（串口地址）
??????? * */
??????? spAdapter.setDatas(ports)
??????? binding.spSerial.adapter = spAdapter
??????? binding.spSerial.onItemSelectedListener = object : AdapterView.OnItemSelectedListener {
??????????? override fun onItemSelected(
??????????????? parent: AdapterView<*>?,
??????????????? view: View,
??????????????? position: Int,
??????????????? id: Long
??????????? ) {
??????????????? serialHelper?.close()
??????????????? serialHelper?.port = ports[position]
??????????????? binding.EditText1.setText(ports[position])
??????????????? binding.open.text = "關(guān)閉串口"
??????????????? //btOpen.setEnabled(true)
??????????? }
??????????? override fun onNothingSelected(parent: AdapterView<*>?) {}
??????? }
??????? /*
???????? * TODO 適配下拉列表（波特率地址）
??????? * */
??????? val spAdapter2 = SpAdapter(this)
??????? spAdapter2.setDatas(botes)
??????? binding.spBote.adapter = spAdapter2
??????? binding.spBote.onItemSelectedListener = object : AdapterView.OnItemSelectedListener {
??????????? override fun onItemSelected(
??????????????? parent: AdapterView<*>?,
??????????????? view: View,
??????????????? position: Int,
??????????????? id: Long
??????????? ) {
??????????????? serialHelper?.close()
??????????????? serialHelper?.setBaudRate(botes[position])
??????????????? binding.EditText2.setText(botes[position])
??????????????? binding.open.text = "關(guān)閉串口"
??????????????? // btOpen.setEnabled(true)
??????????? }
??????????? override fun onNothingSelected(parent: AdapterView<*>?) {}
??????? }
??? }3.模擬數(shù)據(jù)跟新
/*
??? * TODO 線(xiàn)程更新處理
??? * */
??? private val mRunnable: Runnable = object : Runnable {
??????? override fun run() {
??????????? dynamicLineChartManager1?.addEntry((Math.random() * 100).toFloat())
??????????? // 每3秒執(zhí)行一次
??????????? mHandler.postDelayed(this, 3000) //給自己發(fā)送消息，自運(yùn)行
??????? }
}4.開(kāi)啟該線(xiàn)程
//模擬數(shù)據(jù)（simulated data）
??????? binding.SimulateData.setOnClickListener{
??????????? //啟動(dòng)線(xiàn)程
??????????? mHandler.post(mRunnable);
??????????? //設(shè)置模擬數(shù)據(jù)不能被點(diǎn)擊
??????????? binding.SimulateData.isEnabled = false
??????? }5.退出時(shí)關(guān)閉模擬線(xiàn)程
override fun onDestroy() {
??????? //將線(xiàn)程銷(xiāo)毀掉
??????? mHandler.removeCallbacks(mRunnable)
??????? super.onDestroy()
??? }四．多個(gè)房間溫度圖表顯示功能實(shí)現(xiàn)
4.1?效果展示
4.2布局代碼
<?xml version="1.0" encoding="utf-8"?>
<ScrollView
??? xmlns:android="http://schemas.android.com/apk/res/android"
??? xmlns:app="http://schemas.android.com/apk/res-auto"
??? android:layout_width="match_parent"
??? android:layout_height="match_parent"
??? >
??? <LinearLayout
??????? android:layout_width="match_parent"
??????? android:layout_height="match_parent"
??????? android:orientation="vertical">
??????? <androidx.appcompat.widget.Toolbar
??????????? android:background="@color/shape3"
??????????? android:id="@+id/toolbar"
??????????? android:layout_width="match_parent"
??????????? android:layout_height="?actionBarSize"
??????????? android:theme="@style/ThemeOverlay.AppCompat.Dark.ActionBar"
??????????? app:title="SeriaPortHome"
??????????? app:titleTextColor="@android:color/white"
??????????? >
??????? </androidx.appcompat.widget.Toolbar>
??????? <androidx.cardview.widget.CardView
??????????? style="@style/CardViews"
??????????? app:cardCornerRadius="22dp">
??????????? <LinearLayout
??????????????? android:layout_width="match_parent"
?????????? ?????android:layout_height="wrap_content"
??????????????? android:gravity="center_vertical"
??????????????? android:layout_marginLeft="20dp">
??????????????? <TextView
??????????????????? android:layout_width="66dp"
??????????????????? android:layout_height="wrap_content"
??????????????????? android:layout_marginTop="12dp"
??????????????????? android:layout_marginBottom="12dp"
??????????????????? android:alpha="0.4"
??????????????????? android:text="串口號(hào)"
??????????????????? android:gravity="center"
??????? ????????????android:textColor="@color/black"
??????????????????? android:textSize="14sp" />
??????????????? <EditText
??????????????????? android:layout_weight="1"
??????????????????? android:id="@+id/EditText1"
??????????????????? android:layout_width="match_parent"
??????????????????? android:layout_height="match_parent"
??????????????????? android:background="@null"
??????????????????? android:hint="無(wú)"
??????????????????? android:inputType="number"
??????????????????? android:textColor="@color/shape1"
??????????????????? android:textSize="14sp"
??????????????????? android:layout_marginLeft="14dp" />
??????????????? <Spinner
??????????????????? android:id="@+id/sp_serial"
??????????????????? android:layout_width="100dp"
??????????????????? android:layout_height="wrap_content"
??????????????????? android:layout_marginStart="8dp"
??????????????????? android:layout_marginEnd="15dp">
??????????????? </Spinner>
??????????? </LinearLayout>
??????? </androidx.cardview.widget.CardView>
??????? <androidx.cardview.widget.CardView
??????????? style="@style/CardViews"
??????????? app:cardCornerRadius="22dp">
??????????? <LinearLayout
??????????????? android:layout_width="match_parent"
??????????????? android:layout_height="wrap_content"
??????????????? android:gravity="center_vertical"
??????????????? android:layout_marginLeft="20dp">
??????????????? <TextView
??????????????????? android:layout_width="66dp"
??????????????????? android:layout_height="wrap_content"
??????????????????? android:layout_marginTop="12dp"
??????????????????? android:layout_marginBottom="12dp"
??????????????????? android:alpha="0.4"
??????????????????? android:gravity="center"
??????????????????? android:text="波特率"
??????????????????? android:textColor="@color/black"
??????????????????? android:textSize="14sp" />
??????????????? <EditText
??????????????????? android:id="@+id/EditText2"
??????????????????? android:layout_weight="1"
??????????????????? android:layout_width="match_parent"
??????????????????? android:layout_height="match_parent"
??????????????????? android:background="@null"
??????????????????? android:hint="無(wú)"
??????????????????? android:inputType="number"
??????? ????????????android:textColor="@color/shape1"
??????????????????? android:textSize="14sp"
??????????????????? android:layout_marginLeft="14dp" />
??????????????? <Spinner
??????????????????? android:id="@+id/sp_bote"
??????????????????? android:layout_width="100dp"
??????????????????? android:layout_height="wrap_content"
??????????????????? android:layout_marginStart="8dp"
??????????????????? android:layout_marginEnd="15dp">
??????????????? </Spinner>
??????????? </LinearLayout>
??????? </androidx.cardview.widget.CardView>
??????? <LinearLayout
??????????? android:layout_width="match_parent"
??????????? android:layout_height="wrap_content"
??????????? android:gravity="center"
??????????? android:layout_marginTop="20dp"
??????????? android:layout_marginBottom="25dp"
??????????? android:orientation="horizontal">
??????????? <Button
??????????????? android:id="@+id/open"
??????????????? android:layout_width="wrap_content"
??????????????? android:layout_height="44dp"
??????????????? android:background="@drawable/shape_bt"
??????????????? android:gravity="center"
??????????????? android:text="打開(kāi)串口"
??????????????? android:textColor="@android:color/white"
??????????????? android:textSize="@dimen/sp_14" />
? ??????????<View
??????????????? android:layout_width="100dp"
??????????????? android:layout_height="match_parent"
??????????????? >
??????????? </View>
??????????? <Button
??????????????? android:id="@+id/SimulateData"
??????????????? android:layout_width="wrap_content"
??????????????? android:layout_height="44dp"
??????????????? android:background="@drawable/shape_bt"
??????????????? android:gravity="center"
??????????????? android:text="模擬數(shù)據(jù)"
??????????????? android:textColor="@android:color/white"
??????????????? android:textSize="@dimen/sp_14" />
??????? </LinearLayout>
??????? <com.github.mikephil.charting.charts.LineChart
??????????? android:id="@+id/dynamic_chart1"
??????????? android:layout_width="match_parent"
??????????? android:layout_height="380dp"/>
??????? <com.github.mikephil.charting.charts.LineChart
??????????? android:id="@+id/dynamic_chart2"
??????????? android:layout_width="match_parent"
??????????? android:layout_height="380dp"/>
??????? <com.github.mikephil.charting.charts.LineChart
??????????? android:id="@+id/dynamic_chart3"
??????????? android:layout_width="match_parent"
??????????? android:layout_height="380dp"/>
???????
??????? <com.github.mikephil.charting.charts.LineChart
??????????? android:id="@+id/dynamic_chart4"
??????????? android:layout_width="match_parent"
??????????? android:layout_height="380dp"/>
??????? <Button
??????????? android:layout_width="match_parent"
??????????? android:layout_height="wrap_content"
??????????? android:id="@+id/addEntry"
??????????? android:text="隨機(jī)數(shù)據(jù)"
??????????? />
??? </LinearLayout>
</ScrollView>4.3 Activity實(shí)現(xiàn)代碼
1.實(shí)列化以及局部數(shù)據(jù)
//串口
??? private var serialPortFinder: SerialPortFinder? = null
??? private var serialHelper: SerialHelper? = null
??? //曲線(xiàn)
??? private var dynamicLineChartManager1: DynamicLineChartManager? = null
??? private var dynamicLineChartManager2: DynamicLineChartManager? = null
??? private var dynamicLineChartManager3: DynamicLineChartManager? = null
??? private var dynamicLineChartManager4: DynamicLineChartManager? = null
??? //房間數(shù)據(jù)集
??? private val list: MutableList<Float> = ArrayList() //數(shù)據(jù)集合
??? private val list2: MutableList<Float> = ArrayList() //數(shù)據(jù)集合
??? private val list3: MutableList<Float> = ArrayList() //數(shù)據(jù)集合
??? private val list4: MutableList<Float> = ArrayList() //數(shù)據(jù)集合
??? private val names: MutableList<String> = ArrayList() //折線(xiàn)名字集合
??? private val colour: MutableList<Int> = ArrayList() //折線(xiàn)顏色集合
??? //數(shù)據(jù)庫(kù)
??? private var dbHelper: MyDatabaseHelper? = null
private val mHandler = Handler()
2.串口實(shí)現(xiàn)函數(shù)以及數(shù)據(jù)跟新
/*
??? * TODO 串口使用初始化
??? * */
??? private fun openSerialPort(){
??????? serialPortFinder = SerialPortFinder()
??????? serialHelper = object : SerialHelper() {
??????????? override fun onDataReceived(comBean: ComBean) {
??????? ????????runOnUiThread {
??????????????????? /*
??????????????????? * TODO 獲取串口數(shù)據(jù)已經(jīng)保存數(shù)據(jù)
??????????????????? *? */
??????????????????? val formatter = SimpleDateFormat("yyyy-MM-dd")
??????????????????? val date: String = formatter.format(Date())
??????????? ????????/*
??????????????????? * HH-mm-ss(24時(shí)制)
??????????????????? * hh-mm-ss(12時(shí)制)
??????????????????? * */
??????????????????? val formatte = SimpleDateFormat("HH:mm:ss")
??????????????????? val time = formatte.format(Date())
??????????????????? val db: SQLiteDatabase = dbHelper!!.writableDatabase
??????????????????? val home =
??????????????????????? ByteUtil.hexStringToString(ByteUtil.bytesToHexString(comBean.bRec)).toString().substring(0, 2)
??????????????????? val tem =
??????????????????????? ByteUtil.hexStringToString(ByteUtil.bytesToHexString(comBean.bRec)).toString().substring(5, 9)
??????????????????? val hum =
??????????????????????? ByteUtil.hexStringToString(ByteUtil.bytesToHexString(comBean.bRec)).toString().substring(12, 16)
??????????????????? when(home.toInt()) {
??????????????????????? 1 -> {
??????????????????????????? val values = ContentValues()
??????????????????????????? //保存到數(shù)據(jù)庫(kù)中
??????????????????????????? values.put("Home",home.toInt())
??????????????????????????? values.put("Date", date)
??????????????????????????? values.put("time", time)
??????????????????????????? values.put("temperatures", tem)
??????????????????????????? values.put("hum", hum)
?????????????????????? ?????db.insert("temp", null, values) // 插入第一條數(shù)據(jù)
??????????????????????????? values.clear()
??????????????????????????? //更新列表
??????????????????????????? list.add(tem.toFloat())
??????????????????????????? list.add(hum.toFloat())
????????????????????????? ??dynamicLineChartManager1!!.addEntry(list)
??????????????????????????? list.clear()
??????????????????????? }
??????????????????????? 2 -> {
??????????????????????????? val values = ContentValues()
??????????????????????????? //保存到數(shù)據(jù)庫(kù)中
?????????????????? ?????????values.put("Home",home.toInt())
??????????????????????????? values.put("Date", date)
??????????????????????????? values.put("time", time)
??????????????????????????? values.put("temperatures", tem)
??????????????????????????? values.put("hum", hum)
??????????????????????????? db.insert("temp", null, values) // 插入第一條數(shù)據(jù)
??????????????????????????? values.clear()
??????????????????????????? list2.add(tem.toFloat())
??????????????????????????? list2.add(hum.toFloat())
??????????????????????????? dynamicLineChartManager2!!.addEntry(list2)
??????????????????????????? list2.clear()
??????????????????????? }
??????????????????????? 3 -> {
??????????????????????????? val values = ContentValues()
???????????? ???????????????//保存到數(shù)據(jù)庫(kù)中
??????????????????????????? values.put("Home",home.toInt())
??????????????????????????? values.put("Date", date)
??????????????????????????? values.put("time", time)
??????????????????????????? values.put("temperatures", tem)
???? ???????????????????????values.put("hum", hum)
??????????????????????????? db.insert("temp", null, values) // 插入第一條數(shù)據(jù)
??????????????????????????? values.clear()
??????????????????????????? list3.add(tem.toFloat())
??????????????????????????? list3.add(hum.toFloat())
??????????????????????????? dynamicLineChartManager3!!.addEntry(list3)
??????????????????????????? list3.clear()
??????????????????????? }
??????????????????????? 4 -> {
??????????????????????????? val values = ContentValues()
????????????????? ??????????//保存到數(shù)據(jù)庫(kù)中
??????????????????????????? values.put("Home",home.toInt())
??????????????????????????? values.put("Date", date)
??????????????????????????? values.put("time", time)
??????????????????????????? values.put("temperatures", tem)
??????????????????????????? values.put("hum", hum)
??????????????????????????? db.insert("temp", null, values) // 插入第一條數(shù)據(jù)
??????????????????????????? values.clear()
??????????????????????????? list4.add(tem.toFloat())
??????????????????????????? list4.add(hum.toFloat())
??????????????????????????? dynamicLineChartManager4!!.addEntry(list4)
??????????????????????????? list4.clear()
??????????????????????? }
??????????????????????? else -> {
?????? ?????????????????}
??????????????????? }
??????????????? }
??????????? }
??????? }
??????? //獲取串口地址
??????? val ports = serialPortFinder!!.allDevicesPath
??????? //設(shè)置波特率地址
??????? val botes = arrayOf(
??????????? "0",
??????????? "50",
??????????? "75",
??????????? "110",
??????????? "134",
??????????? "150",
??????????? "200",
??????????? "300",
??????????? "600",
??????????? "1200",
??????????? "1800",
??????????? "2400",
??????????? "4800",
??????????? "9600",
??????????? "19200",
??????????? "38400",
??????????? "57600",
??????????? "115200",
??????????? "230400",
??????????? "460800",
??????????? "500000",
??????????? "576000",
??????????? "921600",
??????????? "1000000",
??????????? "1152000",
??????????? "1500000",
??????????? "2000000",
??????????? "2500000",
??????????? "3000000",
??????????? "3500000",
??????????? "4000000"
??????? )
??????? val spAdapter = SpAdapter(this)
??????? /*
???????? * TODO 適配下拉列表（串口地址）
??????? * */
??????? spAdapter.setDatas(ports)
??????? binding.spSerial.adapter = spAdapter
??????? binding.spSerial.onItemSelectedListener = object : AdapterView.OnItemSelectedListener {
??????????? override fun onItemSelected(
??????????????? parent: AdapterView<*>?,
??????????????? view: View,
??????????????? position: Int,
??????????????? id: Long
??????????? ) {
??????????????? serialHelper?.close()
??????????????? serialHelper?.port = ports[position]
??????????????? binding.EditText1.setText(ports[position])
???? ???????????binding.open.text = "關(guān)閉串口"
??????????????? //btOpen.setEnabled(true)
??????????? }
??????????? override fun onNothingSelected(parent: AdapterView<*>?) {}
??????? }
??????? /*
???????? * TODO 適配下拉列表（波特率地址）
??????? * */
??????? val spAdapter2 = SpAdapter(this)
??????? spAdapter2.setDatas(botes)
??????? binding.spBote.adapter = spAdapter2
??????? binding.spBote.onItemSelectedListener = object : AdapterView.OnItemSelectedListener {
??????????? override fun onItemSelected(
??????????????? parent: AdapterView<*>?,
??????????????? view: View,
??????????????? position: Int,
??????????????? id: Long
??????????? ) {
??????????????? serialHelper?.close()
??????????????? serialHelper?.setBaudRate(botes[position])
??????????????? binding.EditText2.setText(botes[position])
??????????????? binding.open.text = "關(guān)閉串口"
??????????????? // btOpen.setEnabled(true)
??????????? }
??????????? override fun onNothingSelected(parent: AdapterView<*>?) {}
??????? }
??? }3.模擬數(shù)據(jù)跟新
/*
??? * TODO 線(xiàn)程更新處理
??? * */
??? private val mRunnable: Runnable = object : Runnable {
??????? override fun run() {
??????????? dynamicLineChartManager1?.addEntry((Math.random() * 100).toFloat())
??????????? dynamicLineChartManager2?.addEntry((Math.random() * 100).toFloat())
??????????? dynamicLineChartManager3?.addEntry((Math.random() * 100).toFloat())
??????????? dynamicLineChartManager4?.addEntry((Math.random() * 100).toFloat())
??????????? // 每3秒執(zhí)行一次
??????????? mHandler.postDelayed(this, 3000) //給自己發(fā)送消息，自運(yùn)行
??????? }??? }4.開(kāi)啟該線(xiàn)程
//模擬數(shù)據(jù)（simulated data）
??????? binding.SimulateData.setOnClickListener{
??????????? //啟動(dòng)線(xiàn)程
??????????? mHandler.post(mRunnable);
??????????? //設(shè)置模擬數(shù)據(jù)不能被點(diǎn)擊
??????????? binding.SimulateData.isEnabled = false
??????? }5.退出時(shí)關(guān)閉模擬線(xiàn)程
override fun onDestroy() {
??????? //將線(xiàn)程銷(xiāo)毀掉
??????? mHandler.removeCallbacks(mRunnable)
??????? super.onDestroy()
??? }五．歷史數(shù)據(jù)分析圖顯示功能實(shí)現(xiàn)
5.1?效果展示
5.2布局代碼
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
??? xmlns:app="http://schemas.android.com/apk/res-auto"
??? android:layout_width="match_parent"
??? android:layout_height="match_parent"
??? android:orientation="vertical">
??? <androidx.appcompat.widget.Toolbar
??????? android:theme="@style/ThemeOverlay.AppCompat.Dark.ActionBar"
??????? android:background="@color/shape3"
??????? android:id="@+id/toolbar"
??????? android:layout_width="match_parent"
??????? android:layout_height="?actionBarSize"
??????? app:title="History Data"
??????? app:titleTextColor="@android:color/white"
??????? >
??? </androidx.appcompat.widget.Toolbar>
??? <FrameLayout
??????? xmlns:android="http://schemas.android.com/apk/res/android"
??????? xmlns:tools="http://schemas.android.com/tools"
??????? xmlns:fab="http://schemas.android.com/apk/res-auto"
??????? android:id="@+id/main_layout"
??????? android:layout_width="match_parent"
??????? android:layout_height="match_parent"
??????? >
??????? <LinearLayout
??????????? android:layout_width="match_parent"
??????????? android:layout_height="match_parent"
??????????? android:orientation="vertical">
??????????? <androidx.cardview.widget.CardView
??????????????? android:layout_width="match_parent"
??????????????? android:layout_height="wrap_content"
??????????????? android:layout_marginStart="30dp"
??????????????? android:layout_marginTop="16dp"
??????????????? android:layout_marginEnd="30dp"
??????????????? android:background="@android:color/white"
??????????????? app:cardCornerRadius="22dp">
??????????????? <LinearLayout
??????????????????? android:layout_width="match_parent"
??????????????????? android:layout_height="wrap_content"
??????????????????? android:layout_marginStart="20dp"
??????????????????? android:layout_marginEnd="20dp"
??????????????????? android:gravity="center_vertical">
??????????????????? <TextView
??????????????????????? android:layout_width="66dp"
??????????????????????? android:layout_height="wrap_content"
??????????????????????? android:layout_marginTop="12dp"
??????????????????????? android:layout_marginBottom="12dp"
??????????????????????? android:alpha="0.4"
??????????????????????? android:text="開(kāi)始日期"
??????????????????????? android:textColor="@color/black"
??????????????????????? android:textSize="14sp" />
??????????????????? <TextView
??????????????????????? android:id="@+id/start_text"
??? ????????????????????android:layout_width="match_parent"
??????????????????????? android:layout_height="match_parent"
??????????????????????? android:gravity="center"
??????????????????????? android:background="@null"
??????????????????????? android:hint="yyyy-MM-ddHH:mm:ss"
??????????????????????? android:inputType="number"
??????????????????????? android:textColor="@color/colorPrimary"
??????????????????????? android:textSize="14sp"
??????????????????????? android:layout_marginLeft="14dp" />
???????????? ???</LinearLayout>
??????????? </androidx.cardview.widget.CardView>
??????????? <androidx.cardview.widget.CardView
??????????????? android:layout_width="match_parent"
??????????????? android:layout_height="wrap_content"
??????????????? android:layout_marginStart="30dp"
??????????????? android:layout_marginTop="16dp"
??????????????? android:layout_marginEnd="30dp"
??????????????? android:layout_marginBottom="16dp"
??????????????? android:background="@android:color/white"
??????????????? app:cardCornerRadius="22dp">
??????????????? <LinearLayout
??????????????????? android:layout_width="match_parent"
??????????????????? android:layout_height="wrap_content"
???????? ???????????android:layout_marginStart="20dp"
??????????????????? android:layout_marginEnd="20dp"
??????????????????? android:gravity="center_vertical">
??????????????????? <TextView
??????????????????????? android:layout_width="66dp"
???????????????????? ???android:layout_height="wrap_content"
??????????????????????? android:layout_marginTop="12dp"
??????????????????????? android:layout_marginBottom="12dp"
??????????????????????? android:alpha="0.4"
??????????????????????? android:text="結(jié)束日期"
???????????? ???????????android:textColor="@color/black"
??????????????????????? android:textSize="14sp" />
??????????????????? <TextView
??????????????????????? android:id="@+id/end_text"
??????????????????????? android:layout_width="match_parent"
?????????????????? ?????android:layout_height="match_parent"
??????????????????????? android:background="@null"
??????????????????????? android:gravity="center"
??????????????????????? android:hint="yyyy-MM-ddHH:mm:ss"
??????????????????????? android:inputType="number"
??????????????????????? android:textColor="@color/colorPrimary"
??????????????????????? android:textSize="14sp"
??????????????????????? android:layout_marginLeft="14dp" />
??????????????? </LinearLayout>
??????????? </androidx.cardview.widget.CardView>
??????????? <com.github.mikephil.charting.charts.LineChart
??????????????? android:id="@+id/dynamic_chart1"
??????????????? android:layout_marginTop="20dp"
??????????????? android:layout_width="match_parent"
??????????????? android:layout_height="400dp"/>
??????????? <TextView
??????????????? android:id="@+id/time"
??????????????? android:layout_width="wrap_content"
??????????????? android:layout_height="wrap_content"
??????????????? android:layout_marginTop="12dp"
??????????????? android:layout_marginBottom="12dp"
??????????????? android:alpha="0.4"
??????????????? android:layout_gravity="center"
??????????????? android:text="等待"
??????????????? android:textColor="@color/black"
??????????????? android:textSize="14sp" />
??????? </LinearLayout>
??? </FrameLayout>
</LinearLayout>5.3 Activity實(shí)現(xiàn)代碼
1.實(shí)列化以及局部數(shù)據(jù)
private var dynamicLineChartManager1: DynamicLineChartManager? = null
??? private val names: MutableList<String> = ArrayList() //折線(xiàn)名字集合
??? private var dbHelper: MyDatabaseHelper? = null
??? private val colour: MutableList<Int> = ArrayList() //折線(xiàn)顏色集合
??? private val list: MutableList<Float> = ArrayList() //數(shù)據(jù)集合
??? private var endData: String? = null
??? private var startData: String? = null
2. 開(kāi)始時(shí)間選擇
//開(kāi)始時(shí)間選擇
??????? binding.startText.setOnClickListener {
??????????? val startTime = "1990-01-01 00:00:00"
??????????? val endTime = "2100-01-01 12:00:00"
??????????? val formatStr = DateUtil.Y_M_D_H_M_S
??????????? val type = booleanArrayOf(true, true, true, true, true, true)
??????????? val currentTime = DateUtil.convertOtherFormat(DateUtil.getCurrentDateTime(), DateUtil.Y_M_D, DateUtil.Y_M_D_H_M_S)
????? ??????PickerViewUtil.selectDateTime(
??????????????? this, { date: Date?, v1: View? ->
??????????????????? startData = DateUtil.dateToString(date, "yyyy-MM-ddHH:mm:ss")
??????????????????? val sb: StringBuilder = StringBuilder(startData)
????????????????? ??Log.d("字符串：", "" + sb.toString() + " 字符長(zhǎng)度：" + sb.length)
??????????????????? val string =sb.toString().substring(0, 10)
??????????????????? startData = string
??????????????????? Log.d("字符串：", "" + startData)
??????????????????? binding.startText.text = DateUtil.date2String(date!!, formatStr)
??????????????? }, currentTime, startTime, endTime, formatStr,
??????????????? "選擇日期時(shí)間", "取消", "確定", type
??????????? )
??????????? //accessUrlRxJava(UrlConstant.ONE_NET_URL)
??????? }3. 結(jié)束時(shí)間選擇
? //結(jié)束時(shí)間選擇
??????? binding.endText.setOnClickListener {
??????????? val startTime = "1990-01-01 00:00:00"
??????????? var endTime = "2100-01-01 12:00:00"
??????????? val formatStr = DateUtil.Y_M_D_H_M_S
??????????? val type = booleanArrayOf(true, true, true, true, true, true)
??????????? val currentsTime = DateUtil.convertOtherFormat(DateUtil.getCurrentDateTime(), DateUtil.Y_M_D, DateUtil.Y_M_D_H_M_S)
???? ???????PickerViewUtil.selectDateTime(
??????????????? this, OnTimeSelectListener { date: Date?, v1: View? ->
??????????????????? endData = DateUtil.dateToString(date, "yyyy-MM-ddHH:mm:ss")
??????????????????? val sb: StringBuilder = StringBuilder(endData)
??????????????????? Log.d("字符串：", "" + sb.toString() + " 字符長(zhǎng)度：" + sb.length)
??????????????????? val string = sb.substring(0, 10)
??????????????????? endData = string.toString()
??????????????????? Log.d("字符串：", "" + endData)
??????????????????? binding.endText.text = DateUtil.date2String(date!!, formatStr)
??????????????????? binding.time.text = "等待中....!"
??????????????????? Handler(Looper.getMainLooper()).postDelayed({
??????????????????????? /**
???????????????????????? * 數(shù)據(jù)初始化（200毫秒）AddDeviceActivity
???????????????????????? * */
??????????????????????? findHistoryData()
??????????????????? }, 300)
??????????????? }, currentsTime, startTime, endTime, formatStr,
??????????????? "選擇日期時(shí)間", "取消", "確定", type
??????????? )
??????????? //accessUrlRxJava(UrlConstant.ONE_NET_URL)
??????? }4.數(shù)據(jù)庫(kù)查找數(shù)據(jù)顯示
private fun findHistoryData(){
??????? val db: SQLiteDatabase = dbHelper!!.writableDatabase
??????? val sql : String = "select * from `temp` where `Date` Between '$startData' and '$endData';"
??????? val cursor: Cursor = db.rawQuery(sql,null)
??????? if (cursor.moveToFirst()) {
??????? ????do {
??????????????? val Datas: String = cursor.getString(
??????????????????? cursor.getColumnIndex("Date")
??????????????? )
??????????????? val times: String = cursor.getString(
??????????????????? cursor.getColumnIndex("time")
??????????????? )
?? ?????????????val temp: Float = cursor.getFloat(
??????????????????? cursor.getColumnIndex("temperatures")
??????????????? )
??????????????? val hum: Float = cursor.getFloat(
??????????????????? cursor.getColumnIndex("hum")
??????????????? )
?????????????? ?list.add(temp.toFloat())
??????????????? list.add(hum.toFloat())
??????????????? dynamicLineChartManager1!!.HistoryAddEntry(list)
??????????????? list.clear()
??????????? } while (cursor.moveToNext())
??????? }
??????? cursor.close()
??????? Handler(Looper.getMainLooper()).postDelayed({
??????????? /**
???????????? * 數(shù)據(jù)初始化（200毫秒）AddDeviceActivity
???????????? * */
??????????? binding.time.text = "數(shù)據(jù)加載完成!"
??????? }, 200)
??? }End
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